Modeling Process of Semi-Continuous Extrusion of Hollow 6063 Aluminum Alloy Profiles Using QForm Extrusion

2021 ◽  
Vol 316 ◽  
pp. 288-294
Author(s):  
Sergey Koloskov ◽  
Sergey Sidelnikov ◽  
Denis Voroshilov
Keyword(s):  
Aluminum Alloy ◽  
Software Package ◽  
Gradual Improvement ◽  
Modeling Process ◽  
The Press ◽  
6063 Aluminum Alloy ◽  
Continuous Extrusion ◽  
Time Required ◽  
Metal Shaping ◽  
Aluminum Alloy 6063

The results of modeling the process of semi-continuous extrusion of hollow profiles of aluminum alloy 6063 on horizontal hydraulic extruders are presented. By modeling with the help of the QForm Extrusion software package, the metal shaping and temperature conditions of this process were studied under given initial and boundary conditions. The authors investigated the various designs of sets of matrices and dividers and assessed the uneven velocity of the expiration of the elements of the profile and the temperature of the metal. Thanks to the gradual improvement of the design of the pressing tool, it was possible to achieve a uniform distribution of speeds and temperatures in the cross section of the profile. Industrial testing of the use of this tool for the manufacture of press products has shown that the proposed design methodology of using the QForm Extrusion software package can be successfully used to prepare the press production and can reduce the time required to master the technology of extruding aluminum alloy profiles.

Technical solutions of vibration safety cold riveting performed ship repair

2020 ◽  
pp. 172-179
Author(s):  
A.Ya. Rozinov
Keyword(s):  
Aluminum Alloy ◽  
Cold Shock ◽  
Vibration Disease ◽  
Shock Absorbers ◽  
Heating And Cooling ◽  
The Press ◽  
Press Equipment ◽  
Technical Solutions ◽  
Ship Repair ◽  
Reverse Methods

The parameters of heating and cooling of rivets made of steel and aluminum alloy, as well as data of fi lling holes with these rivets during hot and cold riveting are compared. The features of the process of performing cold impact riveting by direct and reverse methods, as well as the possibility of reducing the force of this riveting by improving the closing heads and constructive transformation of the rivets themselves are considered. Features of physiological infl uence of cold shock riveting on hands, elbows and shoulders of workers are determined. Describes the construction of riveting hammers and supports with spring shock absorbers that prevent the disease of workers vibration disease, portable riveting presses of pneumatic and hydraulic action. A description of the press equipment and technology of bolt-riveting connections, allowing mechanizing the process of cold riveting is given.

Polycrystal Simulations Investigating the Effect of Additional Slip System Availability in a 6063 Aluminum Alloy at Elevated Temperature

2008 ◽  
Vol 130 (2) ◽  
Author(s):  
Antoinette M. Maniatty ◽  
David J. Littlewood ◽  
Jing Lu
Keyword(s):  
Aluminum Alloy ◽  
Elevated Temperature ◽  
Compression Test ◽  
Elevated Temperatures ◽  
Material Model ◽  
Grain Structure ◽  
Slip Systems ◽  
Modeling Framework ◽  
Element Analysis ◽  
6063 Aluminum Alloy

In order to better understand and predict the intragrain heterogeneous deformation in a 6063 aluminum alloy deformed at an elevated temperature, when additional slip systems beyond the usual octahedral slip systems are active, a modeling framework for analyzing representative polycrystals under these conditions is presented. A model polycrystal that has a similar microstructure to that observed in the material under consideration is modeled with a finite element analysis. A large number of elements per grain (more than 1000) are used to capture well the intragranular heterogeneous response. The polycrystal model is analyzed with three different sets of initial orientations. A compression test is used to calibrate the material model, and a macroscale simulation of the compression test is used to define the deformation history applied to the model polycrystal. In order to reduce boundary condition effects, periodic boundary conditions are applied to the model polycrystal. To investigate the effect of additional slip systems expected to be active at elevated temperatures, the results considering only the 12 {111}⟨110⟩ slip systems are compared to the results with the additional 12 {110}⟨110⟩ and {001}⟨110⟩ slip systems available (i.e., 24 available slip systems). The resulting predicted grain structure and texture are compared to the experimentally observed grain structure and texture in the 6063 aluminum alloy compression sample as well as to the available data in the literature, and the intragranular misorientations are studied.

Selection of the optimal hydraulic drive for the press

2021 ◽  
pp. 50-60
Author(s):  
A.A. Antsifirov ◽  
V.A. Krivoshein
Keyword(s):  
Technological Process ◽  
Electric Motor ◽  
Software Package ◽  
Hydraulic Drive ◽  
Hydraulic Press ◽  
Topological Model ◽  
Electric Motors ◽  
Engine Operation ◽  
The Press ◽  
Selection Of

The research presented in the article is devoted to the selection of the electric motor of the hydraulic press drive with a nominal force of 5MN. The article presents the main characteristics and the description of the press operation using the means of mechanization of the technological process of pressure treatment. Using the Deform-3D software package, the process of stamping the crosspiece of the ZIL-130 cardan shaft was simulated. Based on the presented hydraulic scheme of the press, its topological model was formed in the PA-9 software package. The deformation force obtained in the course of modeling the technological process of stamping was used in the topological model of the press. Using a tabular cyclogram, the sequence of actuation of the end switches and hydraulic distributors during the stamping process is shown. In the article, two variants of engine operation were analyzed. Based on the results of the conducted research, it is necessary to focus on the second version of the 55 kW engine, the operation of which will provide the required characteristics of the hydraulic drive of the press, which in turn will allow for technological stamping operations. The simulation tools allow providing estimated information when selecting the necessary tools to ensure the optimal characteristics of hydraulic press drives. The article considered the variation of electric motors that differ from each other in nominal characteristics, with constant characteristics of the pump. For more accurate estimates of energy savings during the operation of the hydraulic drive, it is necessary to vary the characteristics of the pump in the simulation, and the best option is to form an experiment planning matrix when combining the characteristics of the electric motor and the hydraulic pump. This approach ultimately allows forming a function for which one can select a hydraulic drive from existing brands of electric motors and hydraulic pumps for presses of the corresponding range of nominal force.

The Effects of Solid-Solution on Properties and Microstructure of 6063 Aluminum Alloy

2014 ◽  
Vol 881-883 ◽  
pp. 1346-1350 ◽  
Author(s):  
Ben Chen ◽  
Yu Jiao Wu ◽  
Tao Zhu ◽  
Xin Yun Li
Keyword(s):  
Solid Solution ◽  
Electrical Resistivity ◽  
Aluminum Alloy ◽  
Solution Process ◽  
Solution Treatment ◽  
Aging Treatment ◽  
Solution Treated ◽  
Suitable Solution ◽  
6063 Aluminum Alloy

The solution treatment of 6063 aluminum alloy was carried out and the influences of solution process on microstructure, strength, hardness, and electrical resistivity of 6063 aluminum alloy was analyzed. The result shows that the suitable solution treatment can improve alloy solution-degree fully, meanwhile the changes of electrical resistivity of alloy tend to be balanced. The suitable solution process for 6063 aluminum alloy is solution-treated at 520°C for 3.5h, and the strength and hardness of alloy can be enhanced extremely after aging-treatment at 200°C for 5h.

scholarly journals Hot Deformation Behavior and Microstructure Evolution of 6063 Aluminum Alloy Modified by Rare Earth Y and Al-Ti-B Master Alloy

Materials ◽  
2020 ◽  
Vol 13 (19) ◽  
pp. 4244 ◽  
Author(s):  
Wanwu Ding ◽  
Xiaoxiong Liu ◽  
Xiaoyan Zhao ◽  
Taili Chen ◽  
Haixia Zhang ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Rare Earth ◽  
Dynamic Recrystallization ◽  
Master Alloy ◽  
Hot Deformation ◽  
True Strain ◽  
Constitutive Models ◽  
Hot Workability ◽  
Continuous Dynamic Recrystallization ◽  
6063 Aluminum Alloy

The hot deformation behaviors of the new 6063 aluminum alloy modified by rare earth Y and Al-Ti-B master alloy were studied through isothermal hot compression experiments on the Gleeble-3800 thermal simulator. By characterizing the flow curves, constitutive models, hot processing maps, and microstructures, we can see from the true stress–true strain curves that the flow stress decreases with the increase of deformation temperature and the decrease of strain rate. Through the calculation of the constitutive equation, we derived that the activation energy of the new composite modified 6063 aluminum alloy is 224.570 KJ/mol. we roughly obtained its excellent hot processing range of temperatures between 470–540 °C and the strain rates of 0.01–0.1 s−1. The verification of the deformed microstructure shows that with the decrease of lnZ, the grain boundary changes from a low-angle one to a high-angle one and the dynamic recrystallization is dominated by geometric dynamic recrystallization and continuous dynamic recrystallization. Analysis of typical samples at 480 °C/0.01 s−1 shows that the addition of rare earth Y mainly helps form Al3Y5 and AlFeSiY phases, thus making the alloy have the performance of high-temperature recrystallization, which is beneficial to the hot workability of the alloy.

Constitutive model of 6063 aluminum alloy under the ultrasonic vibration upsetting based on Johnson-Cook model

Ultrasonics ◽  
2019 ◽  
Vol 96 ◽  
pp. 1-9 ◽  
Author(s):  
Zhendong Xie ◽  
Yanjin Guan ◽  
Jun Lin ◽  
Jiqiang Zhai ◽  
Lihua Zhu
Keyword(s):  
Aluminum Alloy ◽  
Constitutive Model ◽  
Ultrasonic Vibration ◽  
6063 Aluminum Alloy ◽  
Cook Model

Research on the Repair Performance of Self-Healing Aluminum Material Based on the Low Melting Point Slicker Solder Alloy

2018 ◽  
Vol 932 ◽  
pp. 57-61
Author(s):  
Wei Sun ◽  
Rong Xin Yan ◽  
Li Chen Sun ◽  
Zheng Li ◽  
Guan Qing Lang ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Melting Point ◽  
Matrix Material ◽  
High Energy ◽  
The Self ◽  
Al Alloy ◽  
Self Healing ◽  
Material Technology ◽  
Damage Repair ◽  
Aluminum Alloy 6063

It is great significance to study self-healing aluminum alloy materials for spacecraft the structure protection from high energy space weapon attack and debris impact in future. In this paper, Using aluminum alloy (6063) as matrix material with low melting point alloy (Sn60Pb40, the melting point of 183°C) as repairing materials, the self-healing Aluminum Alloy material was designed and manufactured by the smelting and casting method. The crack damage repair performance of the self-healing Al alloy was researched through the experiment. The results show that the self-healing aluminum alloy has certain self-healing ability without help, when the temperature reaches the melting point temperature of Sn60Pb40. The repair time is about 20min, the crack filling rate can reach 84%. The research conclusion can provide a reference for the development of metal self-healing material technology.

Residual Stresses due to Deep-Drawing of Pre-Coated Aluminum-Alloy Sheets

2005 ◽  
Vol 490-491 ◽  
pp. 358-363 ◽  
Author(s):  
Masatoshi Sudo ◽  
Tomohiko Iwase ◽  
Yoshiyuki Hattori ◽  
Madoka Nakajima
Keyword(s):  
Residual Stress ◽  
Aluminum Alloy ◽  
Residual Stresses ◽  
Sheet Metal ◽  
Direct Contact ◽  
Volatile Oil ◽  
The Press ◽  
The Face ◽  
Coated Layer ◽  
Press Formability

In this study, we examined how the press formability of A1 alloys sheets and the generation of residual stresses was influenced by pre-coating resins, lubricants, die shoulder radius, the punch shoulder radius, and so on. The use of a pre-coated layer offers advantages by preventing direct contact between sheet metal and the face of the die, and also by enabling the use of volatile oil lubricants that keep the factory environment cleaner. The circumferential residual stress (σC ) of a cup becomes lower when the lubricant is less effective, and when the die shoulder radius is smaller.

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